// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

/// @assertion We say that a type T0 is a subtype of a type T1 (written T0 <: T1)
/// when:
/// Left FutureOr: T0 is FutureOr<S0>
///   and Future<S0> <: T1
///   and S0 <: T1
/// @description Check that if a type T0 is FutureOr<S0> and S0 is a subtype of
/// T1 but Future<S0> is not a subtype of T1 , then a type T0 is not a subtype of
/// a type T1.
/// @author sgrekhov@unipro.ru

import "dart:async";

class T1 {
  const T1();
}
class S0 extends T1 {}

FutureOr<S0> t0Instance = Future<S0>.value(new S0()); // Future<S0> is not a subtype of T1
T1 t1Instance = new T1();

const t1Default = const T1();

//# @T0 = FutureOr<S0>
//# @T1 = T1